CN112339934B - Bearing type centering method for ship installation tail pipe sealing device - Google Patents
Bearing type centering method for ship installation tail pipe sealing device Download PDFInfo
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- CN112339934B CN112339934B CN202011050425.5A CN202011050425A CN112339934B CN 112339934 B CN112339934 B CN 112339934B CN 202011050425 A CN202011050425 A CN 202011050425A CN 112339934 B CN112339934 B CN 112339934B
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- 238000007789 sealing Methods 0.000 title claims abstract description 111
- 238000009434 installation Methods 0.000 title claims abstract description 107
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 31
- 238000001179 sorption measurement Methods 0.000 claims abstract description 3
- 238000003825 pressing Methods 0.000 claims description 45
- 238000005096 rolling process Methods 0.000 claims description 18
- 230000003014 reinforcing effect Effects 0.000 claims description 13
- 230000000149 penetrating effect Effects 0.000 claims description 10
- 210000004907 gland Anatomy 0.000 claims description 6
- 238000012937 correction Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 3
- 230000003111 delayed effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 241001584775 Tunga penetrans Species 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/20—Building or assembling prefabricated vessel modules or parts other than hull blocks, e.g. engine rooms, rudders, propellers, superstructures, berths, holds or tanks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H23/00—Transmitting power from propulsion power plant to propulsive elements
- B63H23/32—Other parts
- B63H23/321—Bearings or seals specially adapted for propeller shafts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H23/00—Transmitting power from propulsion power plant to propulsive elements
- B63H23/32—Other parts
- B63H23/321—Bearings or seals specially adapted for propeller shafts
- B63H2023/327—Sealings specially adapted for propeller shafts or stern tubes
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Sealing Devices (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The invention discloses a bearing type centering method for a ship installation tail pipe sealing device, which adopts a special centering device, wherein the centering device comprises a rotating mechanism, a magnetic gauge stand, a dial gauge, an installation base, a connecting plate and a supporting seat, wherein the magnetic gauge stand is fixed on an outer arc section of a bearing seat frame through magnetic adsorption, the dial gauge is fixed on the magnetic gauge stand, the rotating mechanism is rotatably installed on the installation base, the installation base is installed on the connecting plate, and the connecting plate is adjustably installed on the supporting seat. The invention has simple structure and convenient use, and can solve the problem of difficult installation of the tail pipe sealing device caused by delayed installation of the main engine or the intermediate shaft in the prior art.
Description
Technical Field
The invention belongs to the technical field of ship construction, and particularly relates to a bearing type centering method for a ship installation tail pipe sealing device.
Background
With the large-scale development trend of modern ship construction, the diameter of a propeller used by a ship is gradually increased, and the weight of the propeller is also gradually increased. For example, a propeller of a ship type has a diameter of about 11m and a weight of about 93t, and similarly, the propeller shaft has an increased diameter and weight, and the propeller shaft of the ship type has a weight of about 92t. The products used in shipbuilding are provided by different suppliers, such as the above-mentioned ship uses the main engine, propeller, intermediate shaft and propeller shaft, if the suppliers cannot supply the products on schedule, such as the main engine or intermediate shaft, in order to shorten the shipbuilding period and reduce the manufacturing cost or maintenance cost, the propeller shaft and tail pipe sealing device need to be installed in advance.
After parts such as a propeller shaft, a tail pipe sealing device and a propeller of each ship type are installed, the main engine and a shaft system are pre-aligned, initially positioned at an installation position, an intermediate shaft and the propeller shaft are connected into a whole by using a temporary bolt, and the tail pipe sealing device is aligned and installed by using a jigger rotating shaft system of the main engine. Because the main engine or the intermediate shaft is not hung to the installation position, the centering installation work of the tail pipe sealing device cannot be completed by using the jigger of the main engine, if additional power equipment and auxiliary tools are used for rotating the assembly parts such as the propeller with the weight of nearly 200t, the propeller shaft and the like, the labor intensity of constructors is high, large manpower and material resources are required to be spent, the rotation is unstable and difficult to control, and the precision of installing the tail pipe sealing device is low.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a bearing type centering method for a ship tail pipe sealing device, which can solve the problem that the tail pipe sealing device is difficult to install due to delayed installation of a main engine or a middle shaft in the prior art.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the invention provides a bearing type centering method for a ship installation tail pipe sealing device, which adopts a special centering device and comprises a rotating mechanism, a magnetic gauge stand, a dial gauge, an installation base, a connecting plate and a supporting seat,
the rotating mechanism comprises a bearing seat frame, a rolling bearing, a first bearing shaft, a second bearing shaft, a first pressing plate, a second pressing plate, a first set screw and a second set screw, wherein the bearing seat frame is an arc-shaped member, an upper boss is arranged on the bearing seat frame along an outer arc section, a lower boss is arranged on the bearing seat frame along an inner arc section, a mounting groove is formed between the upper boss and the lower boss, the first pressing plate is mounted at the end part of the upper boss, the second pressing plate is mounted at the end part of the lower boss, the first pressing plate and the second pressing plate are arc-shaped, a first bearing mounting hole is respectively formed on one side of the bearing seat frame facing the first pressing plate, a first bearing shaft is arranged between the first bearing mounting holes, a rolling bearing is sleeved on the first bearing seat frame facing one side of the second pressing plate, a second set screw is respectively arranged on one side of the second bearing seat frame facing one side of the second pressing plate, a second set screw is vertically arranged on one side of the second bearing seat frame, a second set screw is vertically arranged on one side of the second bearing frame facing the second bearing seat frame, a second set screw is vertically arranged on the second bearing frame,
the magnetic gauge stand is fixed on the outer arc section of the bearing seat frame through magnetic adsorption, the dial gauge is fixed on the magnetic gauge stand,
the installation base is of a circular ring structure, an installation channel is formed in the side part of the installation base, which is close to the outer arc, along the circumferential direction of the installation base, the second pressing plate, the lower boss and the second bearing shaft are arranged in the installation channel, a bearing track is formed in the outer arc surface of the installation base along the circumferential direction of the installation base, a rolling bearing on the first bearing shaft is arranged in the bearing track, a plurality of seat installation holes are formed in the side wall of the installation base in a penetrating manner along the circumferential direction,
the connecting plate is provided with a plurality of plate mounting holes corresponding to the seat mounting holes in a penetrating way, the mounting base is mounted on the connecting plate through seat mounting bolts and seat mounting nuts, the lower end of the connecting plate is respectively provided with a long waist-shaped transverse adjusting slotted hole at two sides, two sides of the connecting plate are provided with first adjusting seat plates in an outward extending way, the first adjusting seat plates are provided with first adjusting threaded holes in a penetrating way, the first adjusting threaded holes are provided with first adjusting bolts,
the support seat is provided with two long waist-shaped vertical adjustment slotted holes, the transverse adjustment slotted holes and the longitudinal adjustment slotted holes are crossed to form installation slotted holes and are fixed with plate installation nuts through plate installation bolts, the side part of the support seat is outwards extended to be provided with a first adjustment base plate, one side of the first adjustment base plate, which is far away from the support seat, is provided with a third adjustment base plate, the third adjustment base plate is perpendicular to the first adjustment base plate, the top of the first adjustment base plate is provided with a first reinforcing plate, the first reinforcing plate is connected with the support seat and the first adjustment base plate, the first reinforcing plate is positioned under the first adjustment bolts, a third adjustment threaded hole is formed in the third adjustment base plate in a penetrating way, a third adjustment bolt is arranged in the third adjustment threaded hole, the third adjustment bolts support the side part of the connection plate, the support seat is positioned under the longitudinal adjustment slotted holes, the second adjustment base plate is provided with a second adjustment base plate, the first reinforcing plate is connected with a second adjustment base plate in a penetrating way, the second adjustment base plate is provided with a second adjustment threaded hole, the second adjustment bolt is arranged under the second adjustment base plate is provided with a threaded hole,
the centering method comprises the following steps:
firstly, sleeving a first sealing device on a propeller shaft before installation of the propeller shaft, moving the first sealing device to a flange end close to the propeller shaft, lifting the propeller shaft, plugging the propeller shaft into a tail pipe, plugging the propeller shaft to an installation position of the propeller shaft, moving the first sealing device to the installation position, lifting and sleeving a tail sealing device on the propeller shaft, pre-fixing a front end seat plate of a sealing body on the tail pipe by using a sealing installation bolt, ensuring that the sealing installation bolt is not screwed, arranging an adjusting gasket between the sealing body and the tail pipe, and arranging a second elastic gasket between the sealing installation bolt and the sealing body;
step two, lifting the propeller at the installation position, adjusting the taper hole center of the propeller to be basically consistent with the propeller shaft center, sleeving the propeller on the propeller shaft, and leaving a space for setting a dial indicator between the propeller and the sealing bush after sleeving the propeller in place;
step three, erecting a centering device, determining the installation position of the centering device on a platform, placing two support platforms at the installation position, installing a support seat, a connecting plate, an installation base and a rotating mechanism in place, wherein the installation base is arranged outside a sealing body;
fourthly, adsorbing and fixing a magnetic gauge stand on the rotating mechanism, installing a connecting rod and a dial indicator on the gauge stand, and checking that a measuring head on a dial indicator ejector rod is in contact with the surface of the propeller shaft;
step five, manually rotating the rotating mechanism by taking the outer circle of the propeller shaft as a reference, observing data of the dial indicator, adjusting the mounting base to be concentric with the propeller shaft, firstly locking a plate mounting bolt on the supporting base and the connecting plate after adjustment, fixing the position of the centering device, then locking the first adjusting bolt, the second adjusting bolt and the third adjusting bolt, and rotating the rotating mechanism again to observe whether the data of the dial indicator changes;
step six, removing the dial indicator and the connecting rod, finely adjusting the propeller and the propeller shaft to the installation position, pre-fixing the flange end of the sealing bush on the propeller through a sealing fastening bolt, arranging a sealing gasket between the sealing bush and the propeller, and arranging a first elastic gasket between the sealing fastening bolt and the sealing bush;
step seven, reinstalling a connecting rod and a dial indicator on the magnetic gauge stand, enabling a measuring head on a dial indicator ejector rod to be in contact with the outer surface of the sealing bush, rotating a rotating mechanism, observing data of the dial indicator, and adjusting the sealing bush to enable the data of circle run-out on the dial indicator to be in a required range;
step eight, rotating the dial indicator by ninety degrees or an angle suitable for measurement, arranging a measuring head on a dial indicator ejector rod on a flange plane of the sealing bush, rotating a rotating mechanism, observing data of the dial indicator, and adjusting the sealing bush to ensure that the data of full run-out of the upper end surface of the dial indicator is in a required range;
and step nine, measuring the distance between the inner hole of the rear end gland of the sealing body and the outer circle of the sealing bush, adjusting the sealing body to ensure that the distance between the inner hole of the rear end gland of the sealing body in the up-down, left-right four-point directions is within a required range, and screwing up the sealing fastening bolt after correction is completed, and dismantling the correction device.
As the preferable technical scheme, the number of the first shaft mounting holes is 1, the number of the second shaft mounting holes is 2, and the first shaft mounting holes and the second shaft mounting holes are staggered along the length direction of the bearing seat frame.
As an preferable technical scheme, the first pressing plate and the bearing seat frame, and the second pressing plate and the bearing seat frame are fixed through plate fastening bolts.
As the preferable technical scheme, the first shaft mounting hole and the second shaft mounting hole are both long waist holes, and the long axis of the shaft mounting hole points to the circle center of the circular arc where the bearing seat frame is located.
As a preferable technical scheme, a first gasket is arranged between the rolling bearing and the first pressing plate, and a second gasket is arranged between the rolling bearing and the second pressing plate.
As the preferable technical scheme, the installation base consists of two semicircular seat members, two ends of the two seat members are respectively provided with two seat bosses, the seat bosses are arranged on two sides of the seat members, and the two seat members are fixed with a fixing nut through fixing bolts.
As an optimal technical scheme, a reinforcing rib plate is arranged among the supporting seat, the first adjusting bottom plate and the third adjusting bottom plate.
As a preferable technical scheme, the bottom of the supporting seat is provided with a supporting platform.
Compared with the prior art, the invention has the beneficial effects that:
the invention has simple structure and convenient use, and can solve the problem of difficult installation of the tail pipe sealing device caused by delayed installation of the main engine or the intermediate shaft in the prior art.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a centering installation structure of a centering device of the present invention.
Fig. 2 is a partial enlarged view at a in fig. 1.
FIG. 3 is a diagram showing the use of the centering device of the present invention.
Fig. 4 is a partial enlarged view at B in fig. 3.
FIG. 5 is a schematic diagram of the structure of the centering device of the present invention.
Fig. 6 is a cross-sectional view of fig. 5 taken along the direction C-C.
Fig. 7 is a cross-sectional view of fig. 5 taken along the direction C-C1.
Fig. 8 is a sectional view of fig. 5 taken along the direction D-D.
FIG. 9 is a schematic view of the structure of the bearing housing frame in the centering device of the present invention.
Fig. 10 is a cross-sectional view of fig. 9 taken along the direction E-E.
FIG. 11 is a schematic view of the structure of the first platen in the centering device of the present invention.
Fig. 12 is a cross-sectional view of fig. 11 taken along the direction F-F.
Fig. 13 is a sectional view of fig. 11 taken along the direction G-G.
FIG. 14 is a schematic view of the structure of the second platen in the centering device of the present invention.
Fig. 15 is a cross-sectional view of fig. 14 taken along the direction H-H.
Fig. 16 is a cross-sectional view of fig. 14 taken along the direction I-I.
FIG. 17 is a schematic view of the structure of the mounting base of the centering device of the present invention.
Fig. 18 is a sectional view of fig. 17 taken along the direction J-J.
Fig. 19 is a sectional view of fig. 17 taken along the direction K-K.
FIG. 20 is a schematic view of the structure of the support base in the centering device of the present invention.
FIG. 21 is a left side view of the support base of the centering device of the present invention.
FIG. 22 is a schematic view of the structure of a connection plate in the centering device of the present invention.
FIG. 23 is a left side view of the connection plate of the centering device of the present invention.
Wherein, the reference numerals are specifically as follows: dial gauge 101, magnetic gauge stand 102, rotation mechanism 103, bearing housing 1031, first set screw 1032, first bearing shaft 1033, second bearing shaft 1034, second set screw 1035, second pressure plate 1036, second plate fastening bolt 1037, second gasket 1038, rolling bearing 1039, first gasket 10310, first pressure plate 10311, first plate fastening bolt 10312, mounting base 104, fixing bolt 1041, fixing nut 1042, connecting plate 105, first adjustment seat plate 1051, seat mounting nut 106, seat mounting bolt 107, plate mounting nut 108, plate mounting bolt 109, support seat 110, second adjustment bolt 111, second adjustment seat plate 112, third adjustment seat plate 113, third adjustment seat plate 114, reinforcement rib 115, first reinforcement plate 116, first adjustment seat plate 117, first adjustment bolt 118, support platform 201, propeller 301, propeller shaft 401, sealing bushing 501, sealing gasket 502, sealing fastening bolt 503, first elastic gasket 504, sealing body 505, sealing mounting bolt 506, second elastic gasket 508, adjustment gasket 601, tailpipe 601.
Detailed Description
In the description of the present invention, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
The embodiment provides a centering device for installing a tail pipe sealing device, which comprises a rotating mechanism 103, a magnetic gauge stand 102, a dial gauge 101, an installation base 104, a connecting plate 105 and a supporting seat 110.
The rotation mechanism 103 is composed of a bearing housing 1031, a first set screw 1032, a first bearing shaft 1033, a first pad 10310, a first pressing plate 10311, a second set screw 1035, a second bearing shaft 1034, a second pad 1038, a second pressing plate 1036, and a rolling bearing 1039. The bearing frame 1031 is an arc-shaped member, the bearing frame 1031 is provided with an upper boss along the outer arc section, a lower boss along the inner arc section, and a mounting groove is formed between the upper boss and the lower boss. The first pressing plate 10311 is mounted on the end portion of the upper boss through a fastener, the second pressing plate 1036 is mounted on the end portion of the lower boss through a fastener, and the first pressing plate 10311 and the second pressing plate 1036 are both arc-shaped. In this embodiment, the fastener adopts a first plate fastening bolt 10312 and a second plate fastening bolt 1037, a plurality of countersunk bolt holes are disposed at positions of the first pressing plate 10311 corresponding to the upper boss, and a plurality of countersunk bolt holes are disposed at positions of the second pressing plate 1036 corresponding to the upper boss.
The bearing frame 1031 faces one side of the first pressing plate 10311, the first pressing plate 10311 faces one side of the bearing frame 1031, first shaft mounting holes are respectively formed in the first pressing plate 10311, a first bearing shaft 1033 is arranged between the two first shaft mounting holes, and a rolling bearing 1039 is sleeved outside the first bearing shaft 1033. The bearing frame 1031 faces one side of the second pressing plate 1036, one side of the second pressing plate 1036 facing the second bearing frame 1031 is provided with second shaft mounting holes respectively, a second bearing shaft 1034 is arranged between the two second shaft mounting holes, and a rolling bearing 1039 is sleeved on the second bearing shaft 1034. The first shaft mounting holes are set to 1, the second shaft mounting holes are set to 2, and the first shaft mounting holes and the second shaft mounting holes are staggered along the length direction of the bearing block 1031. A first pad 10310 is provided between the rolling bearing 1039 and the first platen 10311, and a second pad 1038 is provided between the rolling bearing 1039 and the second platen 1036.
The first shaft mounting hole and the second shaft mounting hole are both long waist holes, and the long axis of the shaft mounting hole points to the circle center of the circular arc where the bearing seat frame 1031 is located. The outer circular arc section of the bearing frame 1031 and the outer circular arc section of the first pressing plate 10311 are provided with first fastening screw holes, the first fastening screw 1032 is installed in each first fastening screw hole, the inner circular arc section of the bearing frame 1031 and the inner circular arc section of the second pressing plate 1036 are provided with second fastening screw holes, the second fastening screw holes are internally provided with second fastening screws 1035, the first fastening screws 1032 are perpendicular to the first bearing shafts 1033, the second fastening screws 1035 are perpendicular to the second bearing shafts 1034, and the positions of the first bearing shafts 1033 and the second bearing shafts 1034 are respectively adjusted through the first fastening screws 1032 and the second fastening screws 1035, so that the bearing shafts can be in good contact with the surface of the installation base 104.
The mounting base 104 is composed of two semicircular seat members, two ends of the two seat members are respectively provided with two seat bosses, the seat bosses are arranged on two sides of the seat members, and the two seat members are fixed with the fixing nuts 1042 through fixing bolts 1041. The lateral part of the installation base 104 is close to the outer arc and is provided with an installation channel along the circumferential direction of the installation base 104, the second pressing plate 1036, the lower boss and the second bearing axle 1034 are arranged in the installation channel, the outer arc surface of the installation base 104 is provided with a bearing track along the circumferential direction, the rolling bearing 1039 on the first bearing axle 1033 is arranged in the bearing track, and the side wall of the installation base 104 is provided with a plurality of seat installation holes along the circumferential direction in a penetrating manner.
The connecting plate 105 is used for fixed mounting base 104, and connecting plate 105 adopts the steel sheet preparation to form, and one side of connecting plate 105 sets up to the convex face, and connecting plate 105 is provided with a plurality of board mounting holes along the radian direction of arcwall face, and the position one-to-one of board mounting hole and seat mounting hole is the seat mounting hole on the base 104 and the board mounting hole on the connecting plate 105 are aimed at the back, and through seat mounting bolt 107 and seat installation nut 106 fixed. Meanwhile, long kidney-shaped transverse adjusting slotted holes are symmetrically formed in the lower portion of the connecting plate 105 on two sides, first adjusting seat plates 1051 are symmetrically arranged on two sides of the connecting plate 105 in an outward extending mode, the first adjusting seat plates 1051 penetrate through first adjusting threaded holes, first adjusting bolts 118 are arranged in the first adjusting threaded holes, and the upper position and the lower position of the rotating mechanism 103 can be fixed through the first adjusting bolts 118.
The support base 110 includes two support platforms 201 respectively disposed on two sides of the connection board 105, and a bottom of the support base 110 is provided with a support platform. The main body of the supporting seat 110 is a channel steel structure, a long waist-shaped vertical adjusting slot is arranged at the upper part of the supporting seat, the vertical adjusting slot and the transverse adjusting slot are arranged in a crossing way and are fixed with a plate mounting nut 108 through a plate mounting bolt 109, and the vertical adjusting slot and the transverse adjusting slot have the functions of adjusting the up-down and left-right positions of the rotating mechanism 103.
The lateral part of supporting seat 110 outwards extends and is provided with first regulation bottom plate 117, and one side that first regulation bottom plate 117 kept away from supporting seat 110 sets up third regulation bedplate 114, and third regulation bedplate 114 is perpendicular with first regulation bottom plate 117, and the top of first regulation bottom plate 117 is provided with first reinforcing plate 116, and supporting seat 110 and first regulation bottom plate 117 are connected to first reinforcing plate 116, and first reinforcing plate 116 is located under the first adjusting bolt 118 for form the support to first adjusting bolt 118, realize the fixed of connecting plate 105 position. A reinforcing rib 115 is provided between the support base 110, the first adjustment floor 117, and the third adjustment seat plate 114.
The third adjusting seat plate 114 is provided with a third adjusting threaded hole in a penetrating manner, a third adjusting bolt 113 is arranged in the third adjusting threaded hole, and the third adjusting bolt 113 supports the side part of the connecting plate 105 and is used for fixing two sides of the connecting plate 105. The supporting seat 110 is located and is provided with the second regulation bedplate 112 under the vertical regulation slotted hole, runs through on the second regulation bedplate 112 and is provided with the second regulation screw hole, and second adjusting screw 111 is installed to second regulation screw hole, and the lower part of second adjusting screw 111 support connecting plate 105 is used for forming the support to connecting plate 105.
The magnetic gauge stand 102 is fixed on the outer arc section of the bearing block frame 1031 by magnetic attraction, and the dial gauge 101 is fixed on the magnetic gauge stand 102.
In this embodiment, when calibrating the tail pipe 601 sealing device, the specific process is as follows:
step one, before the propeller shaft 401 is installed, a first sealing device is sleeved on the propeller shaft 401 and moved to a flange end close to the propeller shaft 401, the propeller shaft 401 is lifted and conveyed, the propeller shaft 401 is plugged into a tail pipe 601, the propeller shaft 401 is plugged to an installation position, the first sealing device is moved to the installation position, then a tail sealing device is lifted and conveyed and sleeved on the propeller shaft 401, a front end seat plate of a sealing body 505 is pre-fixed on the tail pipe 601 by using a sealing installation bolt 506, the sealing installation bolt 506 is not screwed, an adjusting gasket 508 is arranged between the sealing body 505 and the tail pipe 601, and a second elastic gasket 507 is arranged between the sealing installation bolt 506 and the sealing body 505.
Step two, lifting the propeller 301 at the installation position, adjusting the taper hole center of the propeller 301 to be basically consistent with the center of the propeller shaft 401, sleeving the propeller 301 on the propeller shaft 401, and leaving a space for setting the dial indicator 101 between the propeller 301 and the sealing bushing 501 after sleeving the propeller 301 in place.
Step three, erecting a centering device, determining the installation position of the centering device on the platform, placing two support platforms 201 at the installation position, and installing the support base 110, the connecting plate 105, the installation base 104 and the rotating mechanism 103 in place, wherein the installation base 104 is arranged outside the sealing body 505. The method comprises the following steps: after the two support bases 110 are fixed at the mounting positions, the connecting plate 105 is fixed on the support bases 110 by the plate mounting bolts 109 and the plate mounting nuts 108, the mounting base 104 is fixed on the connecting plate 105 by the base mounting bolts 107 and the base mounting nuts 106, the rotating mechanism 103 is mounted on the mounting base 104, the rotating mechanism 103 is rotated to check the flexibility and tightness, the contact condition between the rolling bearing 1039 and the arc surface track is adjusted by the first fastening screw 1032, the two semicircular base members are connected into a whole by the fixing bolts 1041 and the fixing nuts 1042, and the pre-centering is performed by adjusting the first adjusting bolt 118, the second adjusting bolt 111 and the third adjusting bolt 113.
And fourthly, adsorbing and fixing a magnetic gauge stand on the rotating mechanism 103, installing a connecting rod and a dial gauge 101 on the gauge stand, and checking that a measuring head on a mandril of the dial gauge 101 contacts with the surface of the propeller shaft 401.
And fifthly, manually rotating the rotating mechanism 103 by taking the outer circle of the propeller shaft 401 as a reference, observing data of the dial indicator 101, adjusting the mounting base to be concentric with the propeller shaft 401, firstly locking the supporting seat 110 and the plate mounting bolt 109 on the connecting plate 105 after adjustment, fixing the position of the centering device, then locking the first adjusting bolt 118, the second adjusting bolt 111 and the third adjusting bolt 113, rotating the rotating mechanism 103 again, and observing whether the data of the dial indicator 101 change.
Step six, removing the dial indicator 101 and the extension rod, finely adjusting the propeller and the propeller shaft 401 to the installation position, pre-fixing the flange end of the sealing bush 501 on the propeller 301 through the sealing fastening bolt 503, arranging a sealing gasket 502 between the sealing bush 501 and the propeller 301, and arranging a first elastic gasket 504 between the sealing fastening bolt 503 and the sealing bush 501.
Step seven, reinstalling the extension bar and the dial indicator 101 on the dial indicator frame, enabling a measuring head on a push rod of the dial indicator 101 to be in contact with the outer surface of the sealing bush 501, rotating the rotating mechanism 103, observing data of the dial indicator 101, and adjusting the sealing bush 501 to enable the data of circle run-out on the dial indicator 101 to be in a required range.
And step eight, rotating the dial indicator 101 by ninety degrees or an angle suitable for measurement, arranging a measuring head on a push rod of the dial indicator 101 on a flange plane of the sealing bush 501, rotating the rotating mechanism 103, observing data of the dial indicator 101, and adjusting the sealing bush 501 to ensure that the data of full run-out of the upper end face of the dial indicator 101 is in a required range.
Step nine, measuring the distance between the inner hole of the rear end gland of the sealing body 505 and the outer circle of the sealing bushing 501, adjusting the sealing body 505 to enable the distance between the inner hole of the rear end gland of the sealing body in the up-down, left-right four-point directions to be within a required range, screwing down the sealing fastening bolt 503 after centering is completed, and dismantling the centering device.
In addition, the centering installation method of the head sealing device is basically the same as that of the tail sealing device, and the description thereof is omitted herein.
While the foregoing embodiments have been described in detail and with reference to the present invention, it will be apparent to one skilled in the art that modifications and improvements can be made based on the disclosure without departing from the spirit and scope of the invention.
Claims (8)
1. A bearing type centering method for a ship installation tail pipe sealing device is characterized in that a special centering device is adopted and comprises a rotating mechanism, a magnetic gauge stand, a dial indicator, an installation base, a connecting plate and a supporting seat,
the rotating mechanism comprises a bearing seat frame, a rolling bearing, a first bearing shaft, a second bearing shaft, a first pressing plate, a second pressing plate, a first set screw and a second set screw, wherein the bearing seat frame is an arc-shaped member, an upper boss is arranged on the bearing seat frame along an outer arc section, a lower boss is arranged on the bearing seat frame along an inner arc section, an installation groove is formed between the upper boss and the lower boss, the first pressing plate is installed at the end part of the upper boss, the second pressing plate is installed at the end part of the lower boss, the first pressing plate and the second pressing plate are arc-shaped, a first bearing installation hole is respectively formed on one side of the bearing seat frame facing the first pressing plate, a first bearing shaft is arranged between the first bearing installation hole and the first pressing plate, a rolling bearing is sleeved on the first bearing seat frame facing one side of the second pressing plate, a second bearing installation hole is respectively formed on one side of the second pressing plate, a second set screw is respectively arranged between the second bearing seat frame and the second bearing seat frame, a first set screw is vertically arranged on one side of the first bearing frame and the second bearing frame, a second set screw is vertically arranged on the second bearing frame,
the magnetic gauge stand is fixed on the outer arc section of the bearing seat frame through magnetic adsorption, the dial gauge is fixed on the magnetic gauge stand,
the installation base is of a circular ring structure, an installation channel is formed in the side part of the installation base, which is close to the outer arc, along the circumferential direction of the installation base, the second pressing plate, the lower boss and the second bearing shaft are arranged in the installation channel, a bearing track is formed in the outer arc surface of the installation base along the circumferential direction of the installation base, a rolling bearing on the first bearing shaft is arranged in the bearing track, a plurality of seat installation holes are formed in the side wall of the installation base in a penetrating manner along the circumferential direction,
the connecting plate is provided with a plurality of plate mounting holes corresponding to the seat mounting holes in a penetrating way, the mounting base is mounted on the connecting plate through seat mounting bolts and seat mounting nuts, the lower end of the connecting plate is respectively provided with a long waist-shaped transverse adjusting slotted hole at two sides, two sides of the connecting plate are provided with first adjusting seat plates in an outward extending way, the first adjusting seat plates are provided with first adjusting threaded holes in a penetrating way, the first adjusting threaded holes are provided with first adjusting bolts,
the support seat is provided with two, the upper portion of support seat is provided with long waist-shaped vertical regulation slotted hole, horizontal regulation slotted hole with vertical regulation slotted hole cross arrangement forms the installation slotted hole and passes through board mounting bolt and board mounting nut fixed, the lateral part of support seat outwards extends and is provided with first adjusting bottom plate, first adjusting bottom plate is kept away from one side of support seat sets up the third adjusting seat board, the third adjusting seat board with first adjusting bottom plate is perpendicular, the top of first adjusting bottom plate is provided with first reinforcing plate, first reinforcing plate is connected the support seat with first adjusting bottom plate, first reinforcing plate is located under the first adjusting bolt, run through on the third adjusting seat board and be provided with the third adjusting screw hole, be provided with the third adjusting bolt in the third adjusting screw hole, the third adjusting bolt supports the lateral part of connecting plate, the support seat is located under the vertical regulation slotted hole is provided with the second adjusting seat board, be provided with the second adjusting seat board on the second adjusting seat board, the second adjusting seat board is located the second adjusting screw hole, the second adjusting bolt is located under the second adjusting seat board,
the centering method comprises the following steps:
firstly, sleeving a first sealing device on a propeller shaft before installation of the propeller shaft, moving the first sealing device to a flange end close to the propeller shaft, lifting the propeller shaft, plugging the propeller shaft into a tail pipe, plugging the propeller shaft to an installation position of the propeller shaft, moving the first sealing device to the installation position, lifting and sleeving a tail sealing device on the propeller shaft, pre-fixing a front end seat plate of a sealing body on the tail pipe by using a sealing installation bolt, ensuring that the sealing installation bolt is not screwed, arranging an adjusting gasket between the sealing body and the tail pipe, and arranging a second elastic gasket between the sealing installation bolt and the sealing body;
step two, lifting the propeller at the installation position, adjusting the taper hole center of the propeller to be basically consistent with the propeller shaft center, sleeving the propeller on the propeller shaft, and leaving a space for setting a dial indicator between the propeller and the sealing bush after sleeving the propeller in place;
step three, erecting a centering device, determining the installation position of the centering device on a platform, placing two support platforms at the installation position, installing a support seat, a connecting plate, an installation base and a rotating mechanism in place, wherein the installation base is arranged outside a sealing body;
fourthly, adsorbing and fixing a magnetic gauge stand on the rotating mechanism, installing a connecting rod and a dial indicator on the gauge stand, and checking that a measuring head on a dial indicator ejector rod is in contact with the surface of the propeller shaft;
step five, manually rotating the rotating mechanism by taking the outer circle of the propeller shaft as a reference, observing data of the dial indicator, adjusting the mounting base to be concentric with the propeller shaft, firstly locking a plate mounting bolt on the supporting base and the connecting plate after adjustment, fixing the position of the centering device, then locking the first adjusting bolt, the second adjusting bolt and the third adjusting bolt, and rotating the rotating mechanism again to observe whether the data of the dial indicator changes;
step six, removing the dial indicator and the connecting rod, finely adjusting the propeller and the propeller shaft to the installation position, pre-fixing the flange end of the sealing bush on the propeller through a sealing fastening bolt, arranging a sealing gasket between the sealing bush and the propeller, and arranging a first elastic gasket between the sealing fastening bolt and the sealing bush;
step seven, reinstalling a connecting rod and a dial indicator on the magnetic gauge stand, enabling a measuring head on a dial indicator ejector rod to be in contact with the outer surface of the sealing bush, rotating a rotating mechanism, observing data of the dial indicator, and adjusting the sealing bush to enable the data of circle run-out on the dial indicator to be in a required range;
step eight, rotating the dial indicator by ninety degrees or an angle suitable for measurement, arranging a measuring head on a dial indicator ejector rod on a flange plane of the sealing bush, rotating a rotating mechanism, observing data of the dial indicator, and adjusting the sealing bush to ensure that the data of full run-out of the upper end surface of the dial indicator is in a required range;
and step nine, measuring the distance between the inner hole of the rear end gland of the sealing body and the outer circle of the sealing bush, adjusting the sealing body to ensure that the distance between the inner hole of the rear end gland of the sealing body in the up-down, left-right four-point directions is within a required range, and screwing up the sealing fastening bolt after correction is completed, and dismantling the correction device.
2. The bearing type centering method for the ship installation tail pipe sealing device according to claim 1, wherein 1 first shaft installation hole is arranged, 2 second shaft installation holes are arranged, and the first shaft installation holes and the second shaft installation holes are staggered along the length direction of the bearing seat frame.
3. The bearing type centering method of a ship installation tail pipe sealing device according to claim 1, wherein the first pressing plate and the bearing seat frame, and the second pressing plate and the bearing seat frame are fixed through plate fastening bolts.
4. The centering device for a ship installation tail pipe sealing device according to claim 1, wherein the first shaft installation hole and the second shaft installation hole are both long waist holes, and the long axis of the shaft installation hole points to the circle center of the circular arc where the bearing seat frame is located.
5. A bearing type centering method of a ship mounted tail pipe sealing device as claimed in claim 1, wherein a first gasket is arranged between the rolling bearing and the first pressing plate, and a second gasket is arranged between the rolling bearing and the second pressing plate.
6. The bearing type centering method for a ship installation tail pipe sealing device according to claim 1, wherein the installation base is composed of two semicircular seat members, two seat bosses are respectively arranged at two ends of each seat member, the seat bosses are arranged at two sides of each seat member, and the two seat members are fixed with a fixing nut through fixing bolts.
7. A bearing type centering method of a ship installation tail pipe sealing device according to claim 1, wherein reinforcing ribs are arranged among the supporting seat, the first adjusting bottom plate and the third adjusting bottom plate.
8. A bearing type centering method of a ship installation tail pipe sealing device according to claim 1, wherein a supporting platform is arranged at the bottom of the supporting seat.
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| CN202011050425.5A CN112339934B (en) | 2020-09-29 | 2020-09-29 | Bearing type centering method for ship installation tail pipe sealing device |
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| CN202011050425.5A CN112339934B (en) | 2020-09-29 | 2020-09-29 | Bearing type centering method for ship installation tail pipe sealing device |
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